fire fighting helicopter
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fire fighting helicopter
Flocks we are going to upgrade our aerial firefighting fleet, I need your advice concerning the type of helicopter using belly tank (medium helicopter)
Best regards
Best regards
Really need a bit more information to help you, here are just a few questions to get you started:
What fuel types?
Do you want to rappel?
Do you need multi-capability?
What size?
How much money do you have?
New or used?
With crews or without?
What sort of elevations would they need to operate at?
What fuel types?
Do you want to rappel?
Do you need multi-capability?
What size?
How much money do you have?
New or used?
With crews or without?
What sort of elevations would they need to operate at?
I guess he means standard sizing
Type-I (Heavy) - Skycrane / S-61 / 214ST
Type-II (Medium) - Bell 205
Type-III (Light) - Jetranger / Md-500
Helicopter Classification per USFS:
Type I, Heavy: 700 gal water, 16 seats including the pilot, allowable payload 5000 lbs. (e.g.: Boeing-234, S-64, AS-332, Vertol-107)
Type II, Medium: 300 gal water, 10 seats including the pilot, allowable payload 2500 lbs. (e.g.: Bell-212, Bell-205, BK-117, S-58)
Type III, Light: 100 gal water, 5 seats including the pilot, allowable payload 1200 lbs. (e.g.: Bell-206B-III, 206L, Lama, MD-500, AS-350)
Type IV: 75 gal water, 3 seats including the pilot, allowable payload 600 lbs. (e.g.: Bell-47, Hiller-12E)
In the medium category, we operate a Huey, (restricted) and a Bell 212 which can be fitted with a tank, and has rappel brackets. It comes down to personal choice I guess...
Type-I (Heavy) - Skycrane / S-61 / 214ST
Type-II (Medium) - Bell 205
Type-III (Light) - Jetranger / Md-500
Helicopter Classification per USFS:
Type I, Heavy: 700 gal water, 16 seats including the pilot, allowable payload 5000 lbs. (e.g.: Boeing-234, S-64, AS-332, Vertol-107)
Type II, Medium: 300 gal water, 10 seats including the pilot, allowable payload 2500 lbs. (e.g.: Bell-212, Bell-205, BK-117, S-58)
Type III, Light: 100 gal water, 5 seats including the pilot, allowable payload 1200 lbs. (e.g.: Bell-206B-III, 206L, Lama, MD-500, AS-350)
Type IV: 75 gal water, 3 seats including the pilot, allowable payload 600 lbs. (e.g.: Bell-47, Hiller-12E)
In the medium category, we operate a Huey, (restricted) and a Bell 212 which can be fitted with a tank, and has rappel brackets. It comes down to personal choice I guess...
Or Ka32A11BC with IFEX.....and bambi bucket.
YouTube - Ifex 3000
on video demo of small system 2x18 l pulse useful up to 50 m distance
and 300 l total fluid on AS350 B2
Ka32 can cary 3-4000 l of fluid and pulse guns are 2x25 useful up
to 75 m distance also in night VFR conditions....
YouTube - Ifex 3000
on video demo of small system 2x18 l pulse useful up to 50 m distance
and 300 l total fluid on AS350 B2
Ka32 can cary 3-4000 l of fluid and pulse guns are 2x25 useful up
to 75 m distance also in night VFR conditions....
Last edited by 9Aplus; 11th Jul 2010 at 08:43.
Is the pulse suitable for putting water through an ozzie bush tree canopy to a extinguish small fire below?
Thermal cameras are very good at identifying lighting strike hot spots before they become big enough to be pinpointed by smoke.
Could the combination of this pulse and a thermal camera on an recce aircraft be a good combination to nail the little buggers before they become a major event?
Have experienced the water cannon on the Skycrane many years ago.
Mickjoebill
Thermal cameras are very good at identifying lighting strike hot spots before they become big enough to be pinpointed by smoke.
Could the combination of this pulse and a thermal camera on an recce aircraft be a good combination to nail the little buggers before they become a major event?
Have experienced the water cannon on the Skycrane many years ago.
Mickjoebill
Pulse cycle performs opening of over pressure valve on approx 25 bar pressure,
resulting in 100 micron atomization of water droplets. Speed on exit is approx.
400 km/h.
Small 1 liter hand system is capable to break auto glass or door made of wood.
Big system 25 liter canon can break average tower 6 mm glass from approx.
25 m distance. Each canon is capable to repeat pulse in 4 sec interval, therefore
in twin system each pulse goes on 2 sec interval.
So answer is YES, only question is from what distance/high, infrared camera is
first option to helicopter system, otherwise operator have poor chances for
accurate aiming right bellow helicopter....
100 liter of water from pulse system have same effect like 1000 lit from bambi
bucket or fix-wing fire bomber with pin point precision and possible use in night
VFR conditions. 4000 lit on Ka32 means 160 pulses in 25 liter system equal
in effect to 29 attacks on fire by CL415 fire bomber !!!!!
Image of breaking of bus glass with 1 lit handy pulse system
resulting in 100 micron atomization of water droplets. Speed on exit is approx.
400 km/h.
Small 1 liter hand system is capable to break auto glass or door made of wood.
Big system 25 liter canon can break average tower 6 mm glass from approx.
25 m distance. Each canon is capable to repeat pulse in 4 sec interval, therefore
in twin system each pulse goes on 2 sec interval.
So answer is YES, only question is from what distance/high, infrared camera is
first option to helicopter system, otherwise operator have poor chances for
accurate aiming right bellow helicopter....
100 liter of water from pulse system have same effect like 1000 lit from bambi
bucket or fix-wing fire bomber with pin point precision and possible use in night
VFR conditions. 4000 lit on Ka32 means 160 pulses in 25 liter system equal
in effect to 29 attacks on fire by CL415 fire bomber !!!!!
Image of breaking of bus glass with 1 lit handy pulse system
Last edited by 9Aplus; 27th Mar 2010 at 20:15.
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I am guessing the OP is not interested in urban systems...I suspect he is interested in the wild land fire environment.
Damn Squirrels.
Last edited by darrenphughes; 27th Mar 2010 at 22:39.
Gordy that urban was just for illustration, how water droplets
are preforming on glass on trees & leafs are even better....
are preforming on glass on trees & leafs are even better....
Last edited by 9Aplus; 28th Mar 2010 at 10:10.
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is it (2x25l) biggest they have? if 350b2 uses 2x15l i belive ka-32 could use something bigger than 2x25l...or it could be mounted on smaller-cheaper helicopter. what helicopters are you using for firefighting in lybia
2 x 25 lit is max size now, upgrade to bigger may be possible but for sure
need extra development time. Pulse of bigger volume have impact on
airframe too.
It may be better to use second standard 2 x 25 lit canon stacked (4 together)
One pulse per second is nice capability.....3000 liters of major water fluid can
be used than within 120 sec also combined with foam agent too....
See bellow demo of SAFIRE foam used in aviation fire.....
need extra development time. Pulse of bigger volume have impact on
airframe too.
It may be better to use second standard 2 x 25 lit canon stacked (4 together)
One pulse per second is nice capability.....3000 liters of major water fluid can
be used than within 120 sec also combined with foam agent too....
See bellow demo of SAFIRE foam used in aviation fire.....
